Clip for electrical knife-switches.



PATBNTED FEB. 10, 1903.

.G. D. PLATT. CLIP FOR ELECTRICAL KNIFE SWITCHES.

APPLICATION I'ILBD D30. 9, 1902.

10 MODEL.

WITNESSES- UNITED STATES PATENT ()FFICE.

CLARENCE D. PLATT, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO THE BRYANT ELECTRIC COMPANY, OF BRIDGEPORT, CONNECTICUT, A COR- PORATION OF CONNECTICUT.

CLIP FOR ELECTRICAL KNIFE-SWITCHES.

SPECIFICATION forming part of Letters Patent No. 720,47 5, dated February 10, 1903.

Application filed. December 9,1902. Serial No. 134,466. (No model.)

To ttZZ whom it may concern:

Be it known that I, CLARENCE D. PLATT, a citizen of the United States of America, residing in Bridgeport, in the county of Fairfield, State of Connecticut, have invented Improvements in Clips forElectrical Knife-Switches, of which the following is a specification.

The main object of my invention is to construct clips for the contacts and hinging lugs of electric knife-switches so that they can be economically manufactured.

In the accompanying drawings, Figure 1 is a perspective view of the several parts from which my improved clip is made. Fig. 2 is an end View of the finished clip drawn to a smaller scale. Fig. 3 is a side view of the same. Fig. 4 is a sectional view of a modification, and Fig. 5 is a perspective view of the clips of the modified form illustrated in Fig. I.

My improved construction of clip is particularly adapted for use in connection with knifeswitches of the smaller type, in which the plates are hinged to one pair of clips and make contact with the other pair, these clips being mounted upon a suitable insulatingbase.

In Fig. 1 I have shown the clip parts on an enlarged scale.

My improvement consists in making each clip of a pair of plates A A, Fig. 1, precisely alike and of such a character that each plate can be made complete at a single operation and then combined with a tubular block B of angular section externally. The two plates are to be riveted together to grasp between them, at their lower ends, this angular block, which has a hole to receive the bared end of the conductor. One of the plates and the plug are to be tapped with a thread to receive the binding-screw.

The preferred construction of plate is shown in Figs. 1, 2, and 3, and comprises a mid dle portion a, with the central riveting-hole,

an offset upper portion a to receive the switch-blade, and a lower bent portion 0. which in the construction shown in Figs. 1, 2, and 3 is V-shaped in character to embrace and grip the corresponding edges of the tubular block B, which is here shown as of rectangular section. It will be seen that when a pair of these plates is riveted together, as at D, Fig. 2, these V-shaped bent ends a of the plates constitute spring-jaws to tightly grip between them the angled block B. In Figs. 2 and 3 I have shown the binding-screw E as in place, and I have indicated by dotted lines at Xthe insulating-base, upon which the clip is mounted and held by a screw passing up from the under side of the base.

In the modification shown in Figs. 4 and 5 the angular block is shown as of pentagonal section, and the gripping-jaws a of the plates A A are shaped accordingly.

I claim as my invention- 1. The herein-described clip for an electric knife-switch, consisting of a pair of plates riveted together at their middle and having at one end parts to receive the knife-blade, and at the other end angular jaws to embrace and grip an angular block for the wire connection.

2. The herein-described clip for an electricalknife-switch,comprisingatubular block of angular section, in combination with a pair of plates riveted together at their middle and having at one end parts to receive the switchblade and at their other ends angular jaws to embrace and grip the said block, substantially as described.

' In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

CLARENCE D. PLATT. Witnesses:

ANTHONY N. J ESBERA, HUBERT HOWSON. 

